Earth-boring sampler



J. STEIGH ET AL.

EARTH BORING SAMPLER Filed August 11. 1923 [Il I/'elar cfSZZl'/ f7, E

,Z677 cafe.

'wily Patented Jan. 26, 1926.

UNITED sTATE-s JAC/OB STEIGE. AND EARL F. CHOATE, QF TAIFT, CALIFB'NIA.a

` EARTH-Beams SAMPLER.

Application med august 11, 1923. serial No.y 656,911.

To all whom t may concern.'

Be it known that we, JACOB STJJIGH and REARL F. CHOATE, citizens of theUnited States, residing at Taft, in -the county of Kern and State ofCalifornia, have inventf ed certain new and useful Improvements inEarth-Boring Samplers; and we do hereby decla-re the following to be afull, clear,- and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

, The object of the present invention is the provision of means forobtaining 'a sample or specimen of the strata through which an openingis bored in the formation' of an artesian or oil well.

Other objects and advantages will be apparent and suggest themselves asthe nature of the invention is understood.

While the drawings illustrate an embodiment of the invention it is to beunderstood that in adapting the same to meet different conditions andrequirements, various changes in the form, proportion and minor detailsof construction may be resorted to without departingl from the nature ofthe invention.

Referring to the accompanying drawings forming a part of theapplication:

Figure 1 is a sectional view of a device embodying the invention,

lFigure 2 is a view of the cutting end,

Figure 3 is a horizontal section on the line 3-3 of Figure 1, and

Figure 4 is a detail portion of the sampling tube.

Corresponding and like parts are referred to in the followingdescription and designated in the several views of .the drawings by likereference characters.

The numeral 1 designates the sampling tube which. may be of anycapacity\ and which is open at its lower end and closed at its upper endwhich is reduced, as indicated at 2, and provided with a vent opening 3which is controlledvby means of a valve 4. A casing 5 encloses thesampling tube 1 and is coupled at its upper end to an operating rod orbar 6 which 1s adapted to be rotated in any preferred manner. A

-sleeve 7 encircles the reduced portion 2 of the sampling tube and ballbearings 8 are interposed between the sleeve 7 and the reduced endportion 2, said sleeve being seview 'of' the upper cured within theupper portion of the cas-Y mg 5. The operating rod or bar 6 -is formedwithv an opening occupied by a pipe 9 throu h which water or othermedium is supplied to facilitate the operation of the device. By-passpipes 10 connect the lower end of the pipe 9 with the-upper portion ofvthe casing V5 but below sleeve 7, .whereby or bar 6 is rotated and thecutter 11 separates a portion of the strata in the form of.

a cane which enters the tube 1, the air displaced escaping through thevent opening 3. The contact of the sampling tube 1 with the earth orstrata revents rotation there- -of and the annular cutter 11 separates aconsisting 0f a casing, an operating means for the casing, a samplingtube located within the casing, means within the casing supporting saidsampling tube, said casing having cutting means at its lower end, andmeans of fluid supply through said operatin means having a pipeextending exterivor y of the casing and having communication with theinterior of the casing below said supporting means.

2. A device of the character specified consisting of a casing havinsubstantially the same interior. diameter t roghout, an operating meansconnected to the casing, a sampling tube located'. within the casing,said sampling tube having a reduced por: tion at its upper end, meanswithin the casing .surrounding said reduced portion and supporting saidsampling tube, said reduced cation with the interior lof the casingbelow portion at its upper end having a vent said supporting means.opening therethrough, said casing having In testimony whereof we aix oursgna- 10 .Y cutting means at its lower end and means tures. p

5 of Huid supply through said operatin j A means having a passageextending exterl- JACOB SATEIGH. orly of the casing and bemg in oommuni-EARL Fi CHOATE.

